Side-frame construction



G. G. FLOYD.

SIDE FRAME CONSTRUCFIDNI` APPLlcATloN FILED APR. s. 1920.

1,378,849; Patented m24, 1921v Jig?! UNITED ys'mrss Geenen o. FLOYD, or CHICAGO, rLrirNoIs, AssrGNon To Mem-GAN STEEL nonnen-ins,

PATENT orrjlcs.

O F CHICAGO, ILLINOIS, A COREOB-A'IIQN OF NEW' JERSEYQ SIDE-FBAME CONSTRUCTION. i

Patented May iM, 1921.

Application led April 8, 1920. Serial No. 372,221..

To all whom it 'may concern.'

Be it known that I, GEORGE G. FLon, a citizen of the United States, residing at Ghicago, in the county of Cook and StateI of Illinois, have invented certain new and useful Improvements in Side-Frame Constructions, of which the following is a specification. Y This invention relates to side frames, and particularly to the cast metal type of' truck side frame.

In my copending application, Serial No. 344,769, filed December 15, 1919, I have set forth at great length causes and effects of compression, tension and bending stresses set' up in a cast metal side frame and which are peculiar to the cast type of' side frame.

` In such ease, I disclose a. cast metal side frame having pedestal jaws for receiving separate journal bores.

This present application relates more specifically to a cast metal truck side 'frame which has no pedestal jaws and which has 'no integrally-formed journal boxes, but has integrally-'formed longitudbully-extending portions at the ends 0i the frame to which the standard Master (.larBuildcrs journal boxes are bolted. So far as the compression, tension and bending' stresses set up in 'the frame, and the means for overcoming same, are concerned, this application is the same as my copending application above mentioned. Accorrlingly, no repetition will be made in tl `s application of the subjectmatter claimed in said copending` application, and only such points as are necessary to give a complete understanding of this present invention will be considered.

, In my said copending application I. have emphasized the value of transmitting forces through the upper web side oi' the tension l thev accompanying sheet of drawings, in

Figure 1 is a fragmentary side elevation of the truck .side 'frame embodying my invention;

gig. 2 a fragmentary top' plan view; an

Fig. 3 is a fragmentary bottom plan view of the same.

The various novel features of my invention will be apparent from the following description and drawings and will be iarticularly pointed out in the appended ciaims.

Referring to the figures of the drawings, it' will be noted ythat I have showna cast metal side frame having a tension member 1Q, compression' member 11, columns 12 and jeurnal box receiving portions 13 (only one of which. is shown), allcast in a single piece. lreferably, as 4mentionedlin my said cope'ndinpj?.'applicationi the gtension I and compression members are Ulshaped-in section and have the webs 14 and 15 thereof at the upper sides of the tension and compression members, respectively, whereby the major portieri of said forces transmitted through the tension member may be carried directly to the compression member without passing through the journal box receiving portions,

.. the main object being to avoid the high tension and bending forces specifically considered in said copending application. By having the web 14 of the tension member extend to the web-15 of the compression member, as at the point 16, a mechanical obstacle is encountered in securing the standard Master Car Builders journal box 17 to the side frame. In other words, the inner bolt 18 which assists in securing a journal boX t`o the side frame, is located at a point substantially directly below the point at which the webs 14 and 15 of the tension and compression members are joined. ingly, toset the bolt 18 in its proper place so that it may be passed through the bolt lugs 19 and 2O of the journal box, I have provided the web members 14 and 15 of the Accordi hols i8 no pssstherethrongh,

All

whereupon ihe boli; heed may rest upon iheupper surface of vthe jonrnel hon receiving4 'jonge 213e In this wey bhe inner bolt 18 may. be made of she same lengh Queer bolt 25, seid y holle 2'" eddi'ion 'to having their heads resiy upon the flange 214i, entend through K- the associoted journal 'oon lugs ond through e tie bei' 26.) which is secured lio s bracket 27 formed iniegrelly with eheside freine Thel'osver ends of the bolts are provided with Washers zlend nuts 29. kBy making the openings 2l ond 22 in .the `Webs of Lilie tension and compression members, respectively, relatively large, ie is adriselole to compensate for loss of material. This is clone by providing ehe ension member Wirth enlarged lstersliy esiending flanges 3Gl which termiin lzilerelly extending flanges 3l formed on 4he compression inenihcr ll, seid iaiiges being arranged around seid openings 2l :ind

22 end being locei'ed over ehe journal box receiving jpo-rlzion. Where the webs ofthe tension enel compression members ere joined.

By' ineens of lhiserrengement; not only are all. of the advantages of overcoming wehe high tension, compression end bending,

siresses obtained, but also the jouzznslhoxes ere secured in dniece in sisimple, ellioientend reliable manner. f

ll, is my intention lloveover all modifico-i tions oithe invention 'felling within. the spirit and scope of the following claims.

l eieiin:

` Il., ln combination', e truck side frame in olnding tension endcompression members and e journal hos` receiving iienge all cast in s single piece, the tension and compression members being of channel section. with the Webs thereof at the upper side of each of seid members, respectively, and being joinedfdirecizlj* eseh other el; the journal box receiving hormone, journal nos, end inner and outer bolts for securing said journal box to the side frame, said webs having openings large enough to permit the passage of the boli*d head of the inner bolt whereby the inner holt head may rest upon the journal nox receiving flange.

2. ln combinzition.I` s truck side. frame including tension and compression mem-bers and s journal box receiving flange all cast n :L single piece, the tension and compression members having Webs 'connected directly to each other at the journalhoX-receivng portion, a journal box, and inner end outerbolts for securing seid journal box to the Side frame, said Webs having openings large enoughl to permit passage of the bolt head of the inner bolt whereby the inner bolt head may rest npouthe journal box receiving llenge.

3.` A tensionl and' compression members and a journal box receiving flange' all castjn a members having Webs providedwith.elined opening 'topermlt the passage oa journal box securing bolt end the headxhere where- Y GEORGE G. FLOYD;

cast lmetal truck side frame including l single piece, the o tension' and compression receiving flangoall cast ina' the tension i and compression the heed thereof- 

